Or, fiber lines probably get messed with via subs like https://en.m.wikipedia.org/wiki/Russian_submarine_Belgorod_(K-329) https://en.m.wikipedia.org/wiki/Russia

Or, fiber lines probably get messed with via subs like https://en.m.wikipedia.org/wiki/Russian_submarine_Belgorod_(K-329) https://en.m.wikipedia.org/wiki/Russian_submarine_Belgorod_(... rather than surface ships.